64350235871 has 4 divisors (see below), whose sum is σ = 64352419872. Its totient is φ = 64348051872.

The previous prime is 64350235867. The next prime is 64350235877. The reversal of 64350235871 is 17853205346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64350235871 - 2² = 64350235867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64350235877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047191 + ... + 1106936.

It is an arithmetic number, because the mean of its divisors is an integer number (16088104968).

Almost surely, 2^64350235871 is an apocalyptic number.

64350235871 is a deficient number, since it is larger than the sum of its proper divisors (2184001).

64350235871 is a wasteful number, since it uses less digits than its factorization.

64350235871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184000.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 64350235871 in words is "sixty-four billion, three hundred fifty million, two hundred thirty-five thousand, eight hundred seventy-one".